When did momondo last update prices for flights from Houston to Islip Long Island Airport?

Prices for flights from Houston to Islip Long Island Airport refresh daily.

How many operators does momondo search for flights from Houston to Islip Long Island Airport?

There is 1 operator available for flights from Houston to Islip Long Island Airport as of January 2026.

How old do you have to be to fly from Houston to Islip Long Island Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The required travel and health documents for your Islip Long Island Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Islip Long Island Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$146 Cheap Flights from Houston to Islip in 2026

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Find the cheapest flights from Houston to New York

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Cheap round-trip flights

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2:01 pm - 9:13 am

IAH

ISP

18h 12m

1 stop

4:07 pm - 6:04 pm

ISP

IAH

26h 57m

1 stop

$215Frontier

Sat, Apr 18 - Sun, Apr 19

9:40 pm - 11:06 am

IAH

ISP

12h 26m

1 stop

2:31 pm - 12:39 am

ISP

IAH

35h 08m

2 stops

$232Multiple Airlines

Fri, Feb 27 - Fri, Mar 6

8:18 pm - 11:06 am

IAH

ISP

13h 48m

1 stop

1:42 pm - 7:29 am

ISP

IAH

18h 47m

1 stop

$244Frontier

Fri, Feb 27 - Fri, Mar 6

9:03 pm - 9:48 am

IAH

ISP

11h 45m

1 stop

1:22 pm - 8:40 am

ISP

IAH

20h 18m

1 stop

$249Frontier

Fri, Mar 20 - Mon, Mar 23

6:08 pm - 11:10 am

IAH

ISP

16h 02m

2 stops

1:22 pm - 8:40 am

ISP

IAH

20h 18m

1 stop

$268Multiple Airlines

Fri, Mar 20 - Mon, Mar 23

9:15 pm - 12:33 pm

IAH

ISP

14h 18m

1 stop

5:08 pm - 7:04 am

ISP

IAH

14h 56m

1 stop

$339Frontier

Sun, Mar 22 - Thu, Mar 26

5:25 am - 12:25 pm

HOU

ISP

6h 00m

1 stop

2:00 pm - 8:20 pm

ISP

HOU

7h 20m

1 stop

$345Southwest

Fri, Feb 27 - Fri, Mar 6

7:00 pm - 10:15 am

HOU

ISP

14h 15m

2 stops

2:00 pm - 8:20 pm

ISP

HOU

7h 20m

1 stop

$368Southwest

Fri, Feb 27 - Fri, Mar 6

7:00 pm - 10:15 am

HOU

ISP

14h 15m

2 stops

2:00 pm - 9:55 pm

ISP

HOU

8h 55m

2 stops

$410Southwest

Fri, Feb 27 - Fri, Mar 6

2:45 pm - 11:30 pm

HOU

ISP

7h 45m

2 stops

5:10 pm - 11:30 pm

ISP

HOU

7h 20m

1 stop

$411Southwest

Fri, May 22 - Mon, May 25

Frontier flights from Houston to Islip, New York

Our best Frontier deals on Houston to Islip, New York flight tickets

Frontier

Apr 18

IAH2:01 pmHouston George Bush Intcntl

18h 12m

1 stop

ISP9:13 amIslip Long Island

Apr 19

ISP4:07 pmIslip Long Island

26h 57m

1 stop

IAH6:04 pmHouston George Bush Intcntl

$215

Frontier

Feb 27

IAH8:18 pmHouston George Bush Intcntl

13h 48m

1 stop

ISP11:06 amIslip Long Island

Mar 6

ISP1:42 pmIslip Long Island

18h 47m

1 stop

IAH7:29 amHouston George Bush Intcntl

$244

Frontier

Mar 20

IAH9:03 pmHouston George Bush Intcntl

11h 45m

1 stop

ISP9:48 amIslip Long Island

Mar 23

ISP1:22 pmIslip Long Island

20h 18m

1 stop

IAH8:40 amHouston George Bush Intcntl

$249

Southwest flights from Houston to Islip, New York

Our best Southwest deals on Houston to Islip, New York flight tickets

Southwest

Feb 27

HOU5:25 amHouston Hobby

6h 00m

1 stop

ISP12:25 pmIslip Long Island

Mar 6

ISP2:00 pmIslip Long Island

7h 20m

1 stop

HOU8:20 pmHouston Hobby

$345

Southwest

Feb 27

HOU7:00 pmHouston Hobby

14h 15m

2 stops

ISP10:15 amIslip Long Island

Mar 6

ISP2:00 pmIslip Long Island

7h 20m

1 stop

HOU8:20 pmHouston Hobby

$368

Southwest

Feb 27

HOU7:00 pmHouston Hobby

14h 15m

2 stops

ISP10:15 amIslip Long Island

Mar 6

ISP2:00 pmIslip Long Island

8h 55m

2 stops

HOU9:55 pmHouston Hobby

$410

Fly from

Fly to

Route

Depart

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Price

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Sat 4/18

2:01 pm-9:13 am

1 stop18h 12m

Islip Long Island

Sun 4/19

4:07 pm-6:04 pm

1 stop26h 57m

$215

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Fri 2/27

9:40 pm-11:06 am

1 stop12h 26m

Islip Long Island

Fri 3/6

2:31 pm-12:39 am

2 stops35h 08m

$232

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Fri 2/27

8:18 pm-11:06 am

1 stop13h 48m

Islip Long Island

Fri 3/6

1:42 pm-7:29 am

1 stop18h 47m

$244

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Fri 3/20

9:03 pm-9:48 am

1 stop11h 45m

Islip Long Island

Mon 3/23

1:22 pm-8:40 am

1 stop20h 18m

$249

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Fri 3/20

6:08 pm-11:10 am

2 stops16h 02m

Islip Long Island

Mon 3/23

1:22 pm-8:40 am

1 stop20h 18m

$268

HoustonIslip

IAH - ISP

IAHISP

Houston George Bush Intcntl

Sun 3/22

9:15 pm-12:33 pm

1 stop14h 18m

Islip Long Island

Thu 3/26

5:08 pm-7:04 am

1 stop14h 56m

$339

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

Fri 2/27

5:25 am-12:25 pm

1 stop6h 00m

Islip Long Island

Fri 3/6

2:00 pm-8:20 pm

1 stop7h 20m

$345

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

Fri 2/27

7:00 pm-10:15 am

2 stops14h 15m

Islip Long Island

Fri 3/6

2:00 pm-8:20 pm

1 stop7h 20m

$368

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

Fri 2/27

7:00 pm-10:15 am

2 stops14h 15m

Islip Long Island

Fri 3/6

2:00 pm-9:55 pm

2 stops8h 55m

$410

HoustonIslip

HOU - ISP

HOUISP

Houston Hobby

Fri 5/22

2:45 pm-11:30 pm

2 stops7h 45m

Islip Long Island

Mon 5/25

5:10 pm-11:30 pm

1 stop7h 20m

$411

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Houston to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Houston to Islip Long Island?

Frontier and Southwest are the most popular carriers operating from Houston to Islip Long Island

What airlines fly to Islip, New York?

Spirit Airlines, United Airlines and Delta are the top three most popular airlines that fly to Islip, New York from Houston according to our data. Spirit Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 7 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

Cheap Houston to Islip, New York flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Houston to Islip, New York

Fastest flight time	7h 45m
Direct flights	None

The fastest flight from Houston to Islip, New York takes 7h 45m

There are no direct flights from Houston to Islip, New York. There are no popular flight routes from Houston to Islip, New York.

Search flight deals

How far is Houston to Islip Long Island by plane?
Islip Long Island is 1454.8 mi away from Houston. In terms of flight time, this usually takes a little over 7h 45m.
When did momondo last update prices for flights from Houston to Islip Long Island Airport?
Prices for flights from Houston to Islip Long Island Airport refresh daily.
How many operators does momondo search for flights from Houston to Islip Long Island Airport?
There is 1 operator available for flights from Houston to Islip Long Island Airport as of January 2026.
How old do you have to be to fly from Houston to Islip Long Island Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Houston to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The required travel and health documents for your Islip Long Island Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Islip Long Island Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Houston to Islip, New York

Compare and see reviews for airlines that fly from Houston to Islip, New York with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $336	Free Cancellation	Rating 8.0 4,267 reviews		Search Southwest flights

Montauk

Riverhead

Sag Harbor

Southampton

Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from Houston to Islip?

Finding the right flight to Islip from Houston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Islip quick and easy, saving you time and money.

Can I find flights from Houston to Islip with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Islip from Houston with this policy.

How can momondo help me find flights from Houston to Islip?

momondo helps you find the best flight between Houston and Islip by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Houston to Islip right now. Can momondo alert me if prices change?

Price alerts on flights to Islip from Houston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.